38918330 has 64 divisors (see below), whose sum is σ = 80372736. Its totient is φ = 13440000.

The previous prime is 38918329. The next prime is 38918333. The reversal of 38918330 is 3381983.

38918330 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (38918333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 344354 + ... + 344466.

It is an arithmetic number, because the mean of its divisors is an integer number (1255824).

Almost surely, 2^38918330 is an apocalyptic number.

38918330 is an abundant number, since it is smaller than the sum of its proper divisors (41454406).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

38918330 is a wasteful number, since it uses less digits than its factorization.

38918330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263.

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 38918330 is about 6238.4557384019. The cubic root of 38918330 is about 338.8842607189.

It can be divided in two parts, 3891 and 8330, that added together give a palindrome (12221).

The spelling of 38918330 in words is "thirty-eight million, nine hundred eighteen thousand, three hundred thirty".